SNMP-VIEW-BASED-ACM-MIB(7)



SNMP-VIEW-BASED-ACM-MIB(7)            MIB           SNMP-VIEW-BASED-ACM-MIB(7)

NAME
       SNMP-VIEW-BASED-ACM-MIB  - The Erlang/OTP MIB module for the view-based
       access control model for SNMP

DESCRIPTION
       SNMP-VIEW-BASED-ACM-MIB DEFINITIONS ::= BEGIN

       IMPORTS
           MODULE-COMPLIANCE, OBJECT-GROUP       FROM SNMPv2-CONF
           MODULE-IDENTITY, OBJECT-TYPE,
           snmpModules                           FROM SNMPv2-SMI
           TestAndIncr,
           RowStatus, StorageType                FROM SNMPv2-TC
           SnmpAdminString,
           SnmpSecurityLevel,
           SnmpSecurityModel                     FROM SNMP-FRAMEWORK-MIB;

       snmpVacmMIB       MODULE-IDENTITY
           LAST-UPDATED "9901200000Z"            -- 20 Jan 1999, midnight
           ORGANIZATION "SNMPv3 Working Group"
           CONTACT-INFO "WG-email:   snmpv3@tis.com
                         Subscribe:  majordomo@tis.com
                                     In message body:  subscribe snmpv3

                         Chair:      Russ Mundy
                                     Trusted Information Systems
                         postal:     3060 Washington Rd
                                     Glenwood MD 21738
                                     USA
                         email:      mundy@tis.com
                         phone:      +1-301-854-6889

                         Co-editor:  Bert Wijnen
                                     IBM T.J. Watson Research
                         postal:     Schagen 33
                                     3461 GL Linschoten
                                     Netherlands
                         email:      wijnen@vnet.ibm.com
                         phone:      +31-348-432-794

                         Co-editor:  Randy Presuhn
                                     BMC Software, Inc
                         postal:     965 Stewart Drive
                                     Sunnyvale, CA 94086
                                     USA
                         email:      randy_presuhn@bmc.com
                         phone:      +1-408-616-3100

                         Co-editor:  Keith McCloghrie
                                     Cisco Systems, Inc.
                         postal:     170 West Tasman Drive
                                     San Jose, CA  95134-1706
                                     USA
                         email:      kzm@cisco.com
                         phone:      +1-408-526-5260
                        "
           DESCRIPTION  "The management information definitions for the
                         View-based Access Control Model for SNMP.
                        "
       --  Revision history
           REVISION     "9901200000Z"            -- 20 Jan 1999, midnight
                                                 -- RFC-Editor assigns RFCxxxx
           DESCRIPTION  "Clarifications, published as RFCxxxx"

           REVISION     "9711200000Z"            -- 20 Nov 1997, midnight
           DESCRIPTION  "Initial version, published as RFC2275"

           ::= { snmpModules 16 }

       -- Administrative assignments ****************************************

       vacmMIBObjects      OBJECT IDENTIFIER ::= { snmpVacmMIB 1 }
       vacmMIBConformance  OBJECT IDENTIFIER ::= { snmpVacmMIB 2 }

       -- Information about Local Contexts **********************************

       vacmContextTable OBJECT-TYPE
           SYNTAX       SEQUENCE OF VacmContextEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The table of locally available contexts.

                        This table provides information to SNMP Command
                        Generator applications so that they can properly
                        configure the vacmAccessTable to control access to
                        all contexts at the SNMP entity.

                        This table may change dynamically if the SNMP entity
                        allows that contexts are added/deleted dynamically
                        (for instance when its configuration changes). Such
                        changes would happen only if the management
                        instrumentation at that SNMP entity recognizes more
                        (or fewer) contexts.

                        The presence of entries in this table and of entries
                        in the vacmAccessTable are independent.  That is, a
                        context identified by an entry in this table is not
                        necessarily referenced by any entries in the
                        vacmAccessTable; and the context(s) referenced by an
                        entry in the vacmAccessTable does not necessarily
                        currently exist and thus need not be identified by an
                        entry in this table.

                        This table must be made accessible via the default
                        context so that Command Responder applications have
                        a standard way of retrieving the information.

                        This table is read-only. It cannot be configured via
                        SNMP.
                       "
           ::= { vacmMIBObjects 1 }

       vacmContextEntry OBJECT-TYPE
           SYNTAX       VacmContextEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "Information about a particular context."
           INDEX       {
                         vacmContextName
                       }
           ::= { vacmContextTable 1 }

       VacmContextEntry ::= SEQUENCE
           {
               vacmContextName SnmpAdminString
           }

       vacmContextName  OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(0..32))
           MAX-ACCESS   read-only
           STATUS       current
           DESCRIPTION "A human readable name identifying a particular
                        context at a particular SNMP entity.

                        The empty contextName (zero length) represents the
                        default context.
                       "
           ::= { vacmContextEntry 1 }

       -- Information about Groups ******************************************

       vacmSecurityToGroupTable OBJECT-TYPE
           SYNTAX       SEQUENCE OF VacmSecurityToGroupEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "This table maps a combination of securityModel and
                        securityName into a groupName which is used to define
                        an access control policy for a group of principals.
                       "
           ::= { vacmMIBObjects 2 }

       vacmSecurityToGroupEntry OBJECT-TYPE
           SYNTAX       VacmSecurityToGroupEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "An entry in this table maps the combination of a
                        securityModel and securityName into a groupName.
                       "
           INDEX       {
                         vacmSecurityModel,
                         vacmSecurityName
                       }
           ::= { vacmSecurityToGroupTable 1 }

       VacmSecurityToGroupEntry ::= SEQUENCE
           {
               vacmSecurityModel               SnmpSecurityModel,
               vacmSecurityName                SnmpAdminString,
               vacmGroupName                   SnmpAdminString,
               vacmSecurityToGroupStorageType  StorageType,
               vacmSecurityToGroupStatus       RowStatus
           }

       vacmSecurityModel OBJECT-TYPE
           SYNTAX       SnmpSecurityModel(1..2147483647)
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The Security Model, by which the vacmSecurityName
                        referenced by this entry is provided.

                        Note, this object may not take the 'any' (0) value.
                       "
           ::= { vacmSecurityToGroupEntry 1 }

       vacmSecurityName OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(1..32))
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The securityName for the principal, represented in a
                        Security Model independent format, which is mapped by
                        this entry to a groupName.
                       "
           ::= { vacmSecurityToGroupEntry 2 }

       vacmGroupName    OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(1..32))
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The name of the group to which this entry (e.g., the
                        combination of securityModel and securityName)
                        belongs.

                        This groupName is used as index into the
                        vacmAccessTable to select an access control policy.
                        However, a value in this table does not imply that an
                        instance with the value exists in table vacmAccesTable.
                       "
           ::= { vacmSecurityToGroupEntry 3 }

       vacmSecurityToGroupStorageType OBJECT-TYPE
           SYNTAX       StorageType
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The storage type for this conceptual row.
                        Conceptual rows having the value 'permanent' need not
                        allow write-access to any columnar objects in the row.
                       "
           DEFVAL      { nonVolatile }
           ::= { vacmSecurityToGroupEntry 4 }

       vacmSecurityToGroupStatus OBJECT-TYPE
           SYNTAX       RowStatus
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The status of this conceptual row.

                        Until instances of all corresponding columns are
                        appropriately configured, the value of the
                        corresponding instance of the vacmSecurityToGroupStatus
                        column is 'notReady'.

                        In particular, a newly created row cannot be made
                        active until a value has been set for vacmGroupName.

                        The  RowStatus TC [RFC1903] requires that this
                        DESCRIPTION clause states under which circumstances
                        other objects in this row can be modified:

                        The value of this object has no effect on whether
                        other objects in this conceptual row can be modified.
                       "
           ::= { vacmSecurityToGroupEntry 5 }

       -- Information about Access Rights ***********************************

       vacmAccessTable  OBJECT-TYPE
           SYNTAX       SEQUENCE OF VacmAccessEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The table of access rights for groups.

                        Each entry is indexed by a groupName, a contextPrefix,
                        a securityModel and a securityLevel.  To determine
                        whether access is allowed, one entry from this table
                        needs to be selected and the proper viewName from that
                        entry must be used for access control checking.

                        To select the proper entry, follow these steps:

                        1) the set of possible matches is formed by the
                           intersection of the following sets of entries:
                             the set of entries with identical vacmGroupName
                             the union of these two sets:
                              - the set with identical vacmAccessContextPrefix
                              - the set of entries with vacmAccessContextMatch
                                value of 'prefix' and matching
                                vacmAccessContextPrefix
                             intersected with the union of these two sets:
                              - the set of entries with identical
                                vacmSecurityModel
                              - the set of entries with vacmSecurityModel
                                value of 'any'
                             intersected with the set of entries with
                             vacmAccessSecurityLevel value less than or equal
                             to the requested securityLevel

                        2) if this set has only one member, we're done
                           otherwise, it comes down to deciding how to weight
                           the preferences between ContextPrefixes,
                           SecurityModels, and SecurityLevels as follows:
                           a) if the subset of entries with securityModel
                              matching the securityModel in the message is
                              not empty, then discard the rest.
                           b) if the subset of entries with
                              vacmAccessContextPrefix matching the contextName
                              in the message is not empty,
                              then discard the rest
                           c) discard all entries with ContextPrefixes shorter
                              than the longest one remaining in the set
                           d) select the entry with the highest securityLevel

                        Please note that for securityLevel noAuthNoPriv, all
                        groups are really equivalent since the assumption that
                        the securityName has been authenticated does not hold.
                       "
           ::= { vacmMIBObjects 4 }

       vacmAccessEntry  OBJECT-TYPE
           SYNTAX       VacmAccessEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "An access right configured in the Local Configuration
                        Datastore (LCD) authorizing access to an SNMP context.

                        Entries in this table can use an instance value for
                        object vacmGroupName even if no entry in table
                        vacmAccessSecurityToGroupTable has a corresponding
                        value for object vacmGroupName.
                       "
           INDEX       { vacmGroupName,
                         vacmAccessContextPrefix,
                         vacmAccessSecurityModel,
                         vacmAccessSecurityLevel
                       }
           ::= { vacmAccessTable 1 }

       VacmAccessEntry ::= SEQUENCE
           {
               vacmAccessContextPrefix    SnmpAdminString,
               vacmAccessSecurityModel    SnmpSecurityModel,
               vacmAccessSecurityLevel    SnmpSecurityLevel,
               vacmAccessContextMatch     INTEGER,
               vacmAccessReadViewName     SnmpAdminString,
               vacmAccessWriteViewName    SnmpAdminString,
               vacmAccessNotifyViewName   SnmpAdminString,
               vacmAccessStorageType      StorageType,
               vacmAccessStatus           RowStatus
           }

       vacmAccessContextPrefix OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(0..32))
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "In order to gain the access rights allowed by this
                        conceptual row, a contextName must match exactly
                        (if the value of vacmAccessContextMatch is 'exact')
                        or partially (if the value of vacmAccessContextMatch
                        is 'prefix') to the value of the instance of this
                        object.
                       "
           ::= { vacmAccessEntry 1 }

       vacmAccessSecurityModel OBJECT-TYPE
           SYNTAX       SnmpSecurityModel
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "In order to gain the access rights allowed by this
                        conceptual row, this securityModel must be in use.
                       "
           ::= { vacmAccessEntry 2 }

       vacmAccessSecurityLevel OBJECT-TYPE
           SYNTAX       SnmpSecurityLevel
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The minimum level of security required in order to
                        gain the access rights allowed by this conceptual
                        row.  A securityLevel of noAuthNoPriv is less than
                        authNoPriv which in turn is less than authPriv.

                        If multiple entries are equally indexed except for
                        this vacmAccessSecurityLevel index, then the entry
                        which has the highest value for
                        vacmAccessSecurityLevel is selected.
                       "
           ::= { vacmAccessEntry 3 }

       vacmAccessContextMatch OBJECT-TYPE
           SYNTAX       INTEGER
                       { exact (1), -- exact match of prefix and contextName
                         prefix (2) -- Only match to the prefix
                       }
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "If the value of this object is exact(1), then all
                        rows where the contextName exactly matches
                        vacmAccessContextPrefix are selected.

                        If the value of this object is prefix(2), then all
                        rows where the contextName whose starting octets
                        exactly match vacmAccessContextPrefix are selected.
                        This allows for a simple form of wildcarding.
                       "
           DEFVAL      { exact }
           ::= { vacmAccessEntry 4 }

       vacmAccessReadViewName OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(0..32))
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The value of an instance of this object identifies
                        the MIB view of the SNMP context to which this
                        conceptual row authorizes read access.

                        The identified MIB view is that one for which the
                        vacmViewTreeFamilyViewName has the same value as the
                        instance of this object; if the value is the empty
                        string or if there is no active MIB view having this
                        value of vacmViewTreeFamilyViewName, then no access
                        is granted.
                       "
           DEFVAL      { ''H }   -- the empty string
           ::= { vacmAccessEntry 5 }

       vacmAccessWriteViewName OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(0..32))
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The value of an instance of this object identifies
                        the MIB view of the SNMP context to which this
                        conceptual row authorizes write access.

                        The identified MIB view is that one for which the
                        vacmViewTreeFamilyViewName has the same value as the
                        instance of this object; if the value is the empty
                        string or if there is no active MIB view having this
                        value of vacmViewTreeFamilyViewName, then no access
                        is granted.
                       "
           DEFVAL      { ''H }   -- the empty string
           ::= { vacmAccessEntry 6 }

       vacmAccessNotifyViewName OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(0..32))
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The value of an instance of this object identifies
                        the MIB view of the SNMP context to which this
                        conceptual row authorizes access for notifications.

                        The identified MIB view is that one for which the
                        vacmViewTreeFamilyViewName has the same value as the
                        instance of this object; if the value is the empty
                        string or if there is no active MIB view having this
                        value of vacmViewTreeFamilyViewName, then no access
                        is granted.
                       "
           DEFVAL      { ''H }   -- the empty string
           ::= { vacmAccessEntry 7 }

       vacmAccessStorageType OBJECT-TYPE
           SYNTAX       StorageType
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The storage type for this conceptual row.

                        Conceptual rows having the value 'permanent' need not
                        allow write-access to any columnar objects in the row.
                       "
           DEFVAL      { nonVolatile }
           ::= { vacmAccessEntry 8 }

       vacmAccessStatus OBJECT-TYPE
           SYNTAX       RowStatus
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The status of this conceptual row.

                        The  RowStatus TC [RFC1903] requires that this
                        DESCRIPTION clause states under which circumstances
                        other objects in this row can be modified:

                        The value of this object has no effect on whether
                        other objects in this conceptual row can be modified.
                       "
           ::= { vacmAccessEntry 9 }

       -- Information about MIB views ***************************************

       -- Support for instance-level granularity is optional.
       --
       -- In some implementations, instance-level access control
       -- granularity may come at a high performance cost.  Managers
       -- should avoid requesting such configurations unnecessarily.

       vacmMIBViews     OBJECT IDENTIFIER ::= { vacmMIBObjects 5 }

       vacmViewSpinLock OBJECT-TYPE
           SYNTAX       TestAndIncr
           MAX-ACCESS   read-write
           STATUS       current
           DESCRIPTION "An advisory lock used to allow cooperating SNMP
                        Command Generator applications to coordinate their
                        use of the Set operation in creating or modifying
                        views.

                        When creating a new view or altering an existing
                        view, it is important to understand the potential
                        interactions with other uses of the view.  The
                        vacmViewSpinLock should be retrieved.  The name of
                        the view to be created should be determined to be
                        unique by the SNMP Command Generator application by
                        consulting the vacmViewTreeFamilyTable.  Finally,
                        the named view may be created (Set), including the
                        advisory lock.
                        If another SNMP Command Generator application has
                        altered the views in the meantime, then the spin
                        lock's value will have changed, and so this creation
                        will fail because it will specify the wrong value for
                        the spin lock.

                        Since this is an advisory lock, the use of this lock
                        is not enforced.
                       "
           ::= { vacmMIBViews 1 }

       vacmViewTreeFamilyTable OBJECT-TYPE
           SYNTAX       SEQUENCE OF VacmViewTreeFamilyEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "Locally held information about families of subtrees
                        within MIB views.

                        Each MIB view is defined by two sets of view subtrees:
                          - the included view subtrees, and
                          - the excluded view subtrees.
                        Every such view subtree, both the included and the
                        excluded ones, is defined in this table.

                        To determine if a particular object instance is in
                        a particular MIB view, compare the object instance's
                        OBJECT IDENTIFIER with each of the MIB view's active
                        entries in this table.  If none match, then the
                        object instance is not in the MIB view.  If one or
                        more match, then the object instance is included in,
                        or excluded from, the MIB view according to the
                        value of vacmViewTreeFamilyType in the entry whose
                        value of vacmViewTreeFamilySubtree has the most
                        sub-identifiers.  If multiple entries match and have
                        the same number of sub-identifiers (when wildcarding
                        is specified with the value of vacmViewTreeFamilyMask),
                        then the lexicographically greatest instance of
                        vacmViewTreeFamilyType determines the inclusion or
                        exclusion.

                        An object instance's OBJECT IDENTIFIER X matches an
                        active entry in this table when the number of
                        sub-identifiers in X is at least as many as in the
                        value of vacmViewTreeFamilySubtree for the entry,
                        and each sub-identifier in the value of
                        vacmViewTreeFamilySubtree matches its corresponding
                        sub-identifier in X.  Two sub-identifiers match
                        either if the corresponding bit of the value of
                        vacmViewTreeFamilyMask for the entry is zero (the
                        'wild card' value), or if they are equal.

                        A 'family' of subtrees is the set of subtrees defined
                        by a particular combination of values of
                        vacmViewTreeFamilySubtree and vacmViewTreeFamilyMask.
                        In the case where no 'wild card' is defined in the
                        vacmViewTreeFamilyMask, the family of subtrees reduces
                        to a single subtree.

                        When creating or changing MIB views, an SNMP Command
                        Generator application should utilize the
                        vacmViewSpinLock to try to avoid collisions. See
                        DESCRIPTION clause of vacmViewSpinLock.

                        When creating MIB views, it is strongly advised that
                        first the 'excluded' vacmViewTreeFamilyEntries are
                        created and then the 'included' entries.

                        When deleting MIB views, it is strongly advised that
                        first the 'included' vacmViewTreeFamilyEntries are
                        deleted and then the 'excluded' entries.

                        If a create for an entry for instance-level access
                        control is received and the implementation does not
                        support instance-level granularity, then an
                        inconsistentName error must be returned.
                       "
           ::= { vacmMIBViews 2 }

       vacmViewTreeFamilyEntry OBJECT-TYPE
           SYNTAX       VacmViewTreeFamilyEntry
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "Information on a particular family of view subtrees
                        included in or excluded from a particular SNMP
                        context's MIB view.

                        Implementations must not restrict the number of
                        families of view subtrees for a given MIB view,
                        except as dictated by resource constraints on the
                        overall number of entries in the
                        vacmViewTreeFamilyTable.

                        If no conceptual rows exist in this table for a given
                        MIB view (viewName), that view may be thought of as
                        consisting of the empty set of view subtrees.
                       "
           INDEX       { vacmViewTreeFamilyViewName,
                         vacmViewTreeFamilySubtree
                       }
           ::= { vacmViewTreeFamilyTable 1 }

       VacmViewTreeFamilyEntry ::= SEQUENCE
           {
               vacmViewTreeFamilyViewName     SnmpAdminString,
               vacmViewTreeFamilySubtree      OBJECT IDENTIFIER,
               vacmViewTreeFamilyMask         OCTET STRING,
               vacmViewTreeFamilyType         INTEGER,
               vacmViewTreeFamilyStorageType  StorageType,
               vacmViewTreeFamilyStatus       RowStatus
           }

       vacmViewTreeFamilyViewName OBJECT-TYPE
           SYNTAX       SnmpAdminString (SIZE(1..32))
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The human readable name for a family of view subtrees.
                       "
           ::= { vacmViewTreeFamilyEntry 1 }

       vacmViewTreeFamilySubtree OBJECT-TYPE
           SYNTAX       OBJECT IDENTIFIER
           MAX-ACCESS   not-accessible
           STATUS       current
           DESCRIPTION "The MIB subtree which when combined with the
                        corresponding instance of vacmViewTreeFamilyMask
                        defines a family of view subtrees.
                       "
           ::= { vacmViewTreeFamilyEntry 2 }

       vacmViewTreeFamilyMask OBJECT-TYPE
           SYNTAX       OCTET STRING (SIZE (0..16))
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The bit mask which, in combination with the
                        corresponding instance of vacmViewTreeFamilySubtree,
                        defines a family of view subtrees.

                        Each bit of this bit mask corresponds to a
                        sub-identifier of vacmViewTreeFamilySubtree, with the
                        most significant bit of the i-th octet of this octet
                        string value (extended if necessary, see below)
                        corresponding to the (8*i - 7)-th sub-identifier, and
                        the least significant bit of the i-th octet of this
                        octet string corresponding to the (8*i)-th
                        sub-identifier, where i is in the range 1 through 16.

                        Each bit of this bit mask specifies whether or not
                        the corresponding sub-identifiers must match when
                        determining if an OBJECT IDENTIFIER is in this
                        family of view subtrees; a '1' indicates that an
                        exact match must occur; a '0' indicates 'wild card',
                        i.e., any sub-identifier value matches.

                        Thus, the OBJECT IDENTIFIER X of an object instance
                        is contained in a family of view subtrees if, for
                        each sub-identifier of the value of
                        vacmViewTreeFamilySubtree, either:

                          the i-th bit of vacmViewTreeFamilyMask is 0, or

                          the i-th sub-identifier of X is equal to the i-th
                          sub-identifier of the value of
                          vacmViewTreeFamilySubtree.

                        If the value of this bit mask is M bits long and
                        there are more than M sub-identifiers in the
                        corresponding instance of vacmViewTreeFamilySubtree,
                        then the bit mask is extended with 1's to be the
                        required length.

                        Note that when the value of this object is the
                        zero-length string, this extension rule results in
                        a mask of all-1's being used (i.e., no 'wild card'),
                        and the family of view subtrees is the one view
                        subtree uniquely identified by the corresponding
                        instance of vacmViewTreeFamilySubtree.

                        Note that masks of length greater than zero length
                        do not need to be supported. In this case this
                        object is made read-only.
                       "
           DEFVAL      { ''H }
           ::= { vacmViewTreeFamilyEntry 3 }

       vacmViewTreeFamilyType OBJECT-TYPE
           SYNTAX       INTEGER  { included(1), excluded(2) }
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "Indicates whether the corresponding instances of
                        vacmViewTreeFamilySubtree and vacmViewTreeFamilyMask
                        define a family of view subtrees which is included in
                        or excluded from the MIB view.
                       "
           DEFVAL      { included }
           ::= { vacmViewTreeFamilyEntry 4 }

       vacmViewTreeFamilyStorageType OBJECT-TYPE
           SYNTAX       StorageType
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The storage type for this conceptual row.

                        Conceptual rows having the value 'permanent' need not
                        allow write-access to any columnar objects in the row.
                       "
           DEFVAL      { nonVolatile }
           ::= { vacmViewTreeFamilyEntry 5 }

       vacmViewTreeFamilyStatus OBJECT-TYPE
           SYNTAX       RowStatus
           MAX-ACCESS   read-create
           STATUS       current
           DESCRIPTION "The status of this conceptual row.

                        The  RowStatus TC [RFC1903] requires that this
                        DESCRIPTION clause states under which circumstances
                        other objects in this row can be modified:

                        The value of this object has no effect on whether
                        other objects in this conceptual row can be modified.
                       "
           ::= { vacmViewTreeFamilyEntry 6 }

       -- Conformance information *******************************************

       vacmMIBCompliances  OBJECT IDENTIFIER ::= { vacmMIBConformance 1 }
       vacmMIBGroups       OBJECT IDENTIFIER ::= { vacmMIBConformance 2 }

       -- Compliance statements *********************************************

       vacmMIBCompliance MODULE-COMPLIANCE
           STATUS       current
           DESCRIPTION "The compliance statement for SNMP engines which
                        implement the SNMP View-based Access Control Model
                        configuration MIB.
                       "
           MODULE -- this module
               MANDATORY-GROUPS { vacmBasicGroup }

               OBJECT        vacmAccessContextMatch
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmAccessReadViewName
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmAccessWriteViewName
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmAccessNotifyViewName
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmAccessStorageType
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmAccessStatus
               MIN-ACCESS    read-only
               DESCRIPTION  "Create/delete/modify access to the
                             vacmAccessTable is not required.
                            "

               OBJECT        vacmViewTreeFamilyMask
               WRITE-SYNTAX  OCTET STRING (SIZE (0))
               MIN-ACCESS    read-only
               DESCRIPTION  "Support for configuration via SNMP of subtree
                             families using wild-cards is not required.
                            "

               OBJECT        vacmViewTreeFamilyType
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmViewTreeFamilyStorageType
               MIN-ACCESS    read-only
               DESCRIPTION  "Write access is not required."

               OBJECT        vacmViewTreeFamilyStatus
               MIN-ACCESS    read-only
               DESCRIPTION  "Create/delete/modify access to the
                             vacmViewTreeFamilyTable is not required.
                            "
           ::= { vacmMIBCompliances 1 }

       -- Units of conformance **********************************************

       vacmBasicGroup OBJECT-GROUP
           OBJECTS {
                     vacmContextName,
                     vacmGroupName,
                     vacmSecurityToGroupStorageType,
                     vacmSecurityToGroupStatus,
                     vacmAccessContextMatch,
                     vacmAccessReadViewName,
                     vacmAccessWriteViewName,
                     vacmAccessNotifyViewName,
                     vacmAccessStorageType,
                     vacmAccessStatus,
                     vacmViewSpinLock,
                     vacmViewTreeFamilyMask,
                     vacmViewTreeFamilyType,
                     vacmViewTreeFamilyStorageType,
                     vacmViewTreeFamilyStatus
                   }
           STATUS       current
           DESCRIPTION "A collection of objects providing for remote
                        configuration of an SNMP engine which implements
                        the SNMP View-based Access Control Model.
                       "
           ::= { vacmMIBGroups 1 }

       END

Erlang/OTP                           SNMP           SNMP-VIEW-BASED-ACM-MIB(7)

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